All good thoughts about its only a game, but in a funny way we make it a reflection of life (especially as we spend so much of our lives playing it). Griz is right, there are the good, the bad and the ugly even in here. In fact, each of us reflects the kind of person we are in real life whether we mean to or not.
For myself, I'm a loyalty adict. If I give my allegience to people (not the chess piece or country) I find it hard to arbitrarily switch sides, and my value system makes it difficult to accept that someone I've defended and befriended, would go to 'the other side'. Even though I know this is just a game, sometimes it hurts a bit, and does feel a bit like betrayal. But, its a game after all, and I interact with everyone on all sides as if they are my friends (at least those that don't talk smack, or try to cause trouble) no matter what, even though I probably won't ever understand how they could leave my wing.
Different strokes for differnt folks. We each see the world from our own, unique set of glasses. We gotta make allowances for the fact that others may be seeing something completely different.
And its only a game. Wish it were a job, then I'd be set for life.